Giorgos Papachristoudis – Medium

Giorgos Papachristoudis

Giorgos Papachristoudis

How valuation and dilution works: a guide for the mathematically inclined

We tend to read articles on the internet that just offer formulas or little explanation of how your percentage in the company changes…

10 min readJan 16, 2024

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How valuation and dilution works: a guide for the mathematically inclined

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Giorgos Papachristoudis

Basically the last line of this formula states that the true pair of the anchor z_i is z_j and all…

1 min readJul 13, 2023

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Giorgos Papachristoudis
in
Towards AI

Tools and Techniques I Used for Cleanlab’s Data-centric AI Competition 2023

I had so much fun participating in Cleanlab’s Data-centric AI (DCAI) competition! You can read the competition announcement here. This…

15 min readJun 1, 2023

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Tools and Techniques I Used for Cleanlab’s Data-centric AI Competition 2023

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Giorgos Papachristoudis
in
Towards Data Science

The Bias-Variance Tradeoff

In this post, we will explain the bias-variance tradeoff, a fundamental concept in Machine Learning, and show what it means in practice…

11 min readNov 8, 2019

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The Bias-Variance Tradeoff

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Giorgos Papachristoudis
in
Qloo

Popular evaluation metrics in recommender systems explained

Explaining recall@k, precision@k and average precision@k with examples from Tensorflow.

16 min readApr 4, 2019

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Popular evaluation metrics in recommender systems explained

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Giorgos Papachristoudis

Giorgos Papachristoudis

Senior Applied Scientist @ Amazon | ex-Chief Data Scientist @ Qloo | Avid Data Cruncher | Firm Believer in understanding the theory behind the algos

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